Last Easter while my children were sorting through their baskets of chocolate eggs and jelly beans, my son looked up from the table and asked a simple question:
“Why don’t Grandma and Grandpa eat candy like we do?”
It was the kind of question children ask without really thinking. To him, it seemed obvious: Candy is delicious, so why wouldn’t everyone want it?
From a child’s perspective, it can look like older adults simply lose their taste for sweets. But as a speech-language pathologist who studies swallowing disorders, I know the explanation is often more complicated. In many cases, the issue has less to do with liking candy and more to do with something most people rarely have to think about: swallowing.
Swallowing is more complex than most people realize
You hardly notice the act of swallowing. It happens automatically every time we eat or drink. But swallowing is actually a remarkably complex process. More than 30 muscles and several nerves coordinate to move food from the mouth through the throat and into the esophagus while briefly protecting the airway.
One way to think about swallowing is like a carefully timed relay race. Each group of muscles passes food along to the next step at exactly the right moment, while the airway briefly closes to keep food from entering the lungs.
When everything works smoothly, it takes only a second or two.
Three different phases make up swallowing.
As people age, some parts of this process can change. Chewing muscles may lose a bit of strength. Saliva production can decrease, which makes dry or sticky foods harder to manage. Taste can also shift over time, and the timing of swallowing movements may become slightly slower.
Dental changes or missing teeth can make certain foods harder to chew. These shifts don’t necessarily mean something is wrong, but they can make certain textures more difficult to manage.
Candy is a good example. Many Easter treats – caramels, gummies and sticky chocolate – require strong chewing and precise coordination to swallow comfortably.
For someone whose swallowing has become slightly less efficient, those foods can suddenly feel like more effort than they used to.
When swallowing changes become a disorder
Sometimes, swallowing changes go beyond normal aging. The medical term for difficulty swallowing is dysphagia, and it is a condition that can occur for many reasons. Researchers estimate that about 1 in 25 adults experience dysphagia, making it a relatively common but often overlooked health condition.
This diagram shows the digestive and nasal passages used in swallowing and breathing. Multiple muscles must work in tandem to successfully swallow.
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